How to find 15% of any number

• Step 1) Multiply the number by three.
• Step 2) Divide the result of first step by two.
• Step 3) Move the decimal point to one place left.

Examples, 
     1) Find the 15% of 43.
     Ans :- Step 1) : 43*3 =129
                Step 2) : 129/2 = 64.5
                Step 3) : 6.45......( Move the decimal point to left).
                              So we get, 15%43 = 6.45.

     2) Find the 15% of 69.
     Ans :- Step 1) : 69*3 =207
                Step 2) : 207/2 = 103.5
                Step 3) : 10.35......( Move the decimal point to left).
                             So we get, 15%69 = 10.35.

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